ICMA s.p.a. via Garavaglia, 4 20012 Cuggiono (MI) - ITALIA - tel. +39 02 97249134 - +39 02 97249135 fax +39 02 97241550
MAIN FUNCTIONS DISPLAY SCREEN
ASSEMBLY AND INSTALLATION
Before opening the box, disconnect the controller from the power supply.
The lid is kept in place by two tongues at the higher corner of the box base and is secured in place with a screw.
Loosen the screw and open the box upwards.
To reclose the box let the box lid lean obliquely against the base.
Insert the grooves of the hinge into the securing tongues of the box base.Close the lid, inserting the command keys into the relevant opening. Close the
box and tighten the screw.
To assemby the box, follow this procedure:
•Perforate the upper hole-way (1)
•To screew
•Dismount the box lid
•Hook the base at the hole
•Mark out the location of the lower holes
•Remove the base of the box
•Perforate the lower hole points (2-3)
•Re-hook the base to the hole
•Screw the base at the lower holes
•Mount the lid on
Automatic boiler loading
The controller constantly compares the temperature on the collector (T1) with that of the
lower boiler (T2). The moment the collector’s temperature (T1) exceeds 8K (Variable
value) the temperature in the collector (T2), will appear on the screen with the sun symbol.
If the safety threshold does not prohibit the pump function, the pump itself will be start
functioning.
The display will show the symbol of the pump wheel.
If the difference in temperatures lowers below 4K (Variable value) the pump is turned off.
The sun symbol will disappear from the screen.
Maximum t boiler emperature
If the lower part of the boiler (T2) reaches the set maximum temperature (preset at 60°C),
the loading will stop. Loading will be possible only at a starting temperature of 3K below
the accumulator’s maximum temperature.
The screen will display the following messages:
- the symbol of the pump at a standstill
- the sun symbol
- the message max in the boiler’s symbol which will be flashing
Maximum temperature of the collector
In the event of strong solar heat radiation, the temperature (T1) of the heat-transfer fluid
may exceed 130°C. The heat-transfer fluids will then evaporate. Should this occur the
pump will stop, as a protection, until the temperature does not lower once again below
127°C. The screen will display the following messages:
The symbol of the pump at a standstill
The sun symbol
The flashing of the vapor symbol.
Functions of the evacuated tube collectors
For installations with evacuated tube collectors start up function (6)
According to their construction, it may occur that in evacuated tube collectors the metering
of the temperature of the collector (T1) may be inexact. In this event, the solar circuit must
be started up periodically for a short period, to allow the tube collector to convey the heat
effectively to the sensor (T1). If the tube collector is working, the controller automatically
turns on the pump for 30 seconds every 30 minutes. The temperature symbol T1 of the
sensor is displayed at the lower right of the screen.
Holiday function (3)
During summer, the boiler may heat up excessively because of strong solar heat radiations,
or when the water is not used for a long period. If the function is active, the boiler is
automatically cooled. The holiday symbol appears on the screen.
Anti-freezing function (4)
If the anti-freezing function is active the temperature controller turns on the pump the
minute the temperature of the collector goes down below +5°C. In this way the heat-
transfer fluid is heated up and prevents freezing. When the collector reaches a temperature
of +7°C, the pump is once again deactivated.
NOTE
The temperature in the upper part of the boiler is displayed only if it has also
been connected to the temperature sensor T3 (not included in the supplies). Select
the temperature sensor by using the ▲,▼buttons to display the actual metered
temperature.
In the event of a short circuit of the sensor T3 the recycle system does not stop.
For repairs, request the assistance of a specialized technician.
